PDF 105 KB - Indian Pacing and Electrophysiology Journal
... Brugada syndrome is characterized by a ST-segment elevation in the right precordial leads associated with right bundle branch block (RBBB) pattern and a propensity for life-threatening ventricular arrhythmias in the absence of structural heart disease.1 Mutations in a cardiac sodium channel gene hav ...
... Brugada syndrome is characterized by a ST-segment elevation in the right precordial leads associated with right bundle branch block (RBBB) pattern and a propensity for life-threatening ventricular arrhythmias in the absence of structural heart disease.1 Mutations in a cardiac sodium channel gene hav ...
Contractile cells
... • 1. atrial excitation and contraction should be complete before ventricular excitation and contraction • opening and closing of valves within the heart depend upon pressure – which is generated by muscle contraction • so simultaneous contractions of atria and ventricles would lead to permanent clos ...
... • 1. atrial excitation and contraction should be complete before ventricular excitation and contraction • opening and closing of valves within the heart depend upon pressure – which is generated by muscle contraction • so simultaneous contractions of atria and ventricles would lead to permanent clos ...
sinus arrhythmia
... It is impossible to separate the QRS complexes from the ST segment and the T waves Ventricular fibrillation: The ECG shows fine or coarse waves that are rapid, and irregular in size, shape, and width . ...
... It is impossible to separate the QRS complexes from the ST segment and the T waves Ventricular fibrillation: The ECG shows fine or coarse waves that are rapid, and irregular in size, shape, and width . ...
Mechanism of Ventricular Fibrillation in Hypothermia
... intact dogs using1 Ag-AgCl electrodes placed directly on the myocardium. One indifferent and two stimulating electrodes were attached to the base of the right ventricle for the measurement of ventricular threshold and refractory period as previously described.5 Duration of the test stimuli was 3 mse ...
... intact dogs using1 Ag-AgCl electrodes placed directly on the myocardium. One indifferent and two stimulating electrodes were attached to the base of the right ventricle for the measurement of ventricular threshold and refractory period as previously described.5 Duration of the test stimuli was 3 mse ...
Breaking It Gently: A Rare Case of Arrhythmogenic Right Ventricular
... defibrillator firing. Her AICD has been interrogated as well as her antiarrhythmic medications have been cautiously adjusted which afforded improvement on her symptoms and diminished discharge of her cardiac device. Her recent hospital admission was due to palpitations and intracardiac device firing ...
... defibrillator firing. Her AICD has been interrogated as well as her antiarrhythmic medications have been cautiously adjusted which afforded improvement on her symptoms and diminished discharge of her cardiac device. Her recent hospital admission was due to palpitations and intracardiac device firing ...
Sudden Cardiac Death Caused by an Uncommon Disease
... Sarcoidosis is a chronic inflammatory disease characterized by the presence of noncaseating epithelioid granulomas in tissue. Infectious, other environmental, and genetic factors have all been implicated in the pathogenesis of sarcoid, but the precise etiology remains obscure other than to suggest a ...
... Sarcoidosis is a chronic inflammatory disease characterized by the presence of noncaseating epithelioid granulomas in tissue. Infectious, other environmental, and genetic factors have all been implicated in the pathogenesis of sarcoid, but the precise etiology remains obscure other than to suggest a ...
Cardiac cycle
... Events during cardiac cycle (continued) • Ventricular systole : – After the atrial contraction impulse travels through AV node & specialized conduction system to excite the ventricle. – As the ventricular contraction begins pressure in the ventricles exceeds that of atria and this backwards pressur ...
... Events during cardiac cycle (continued) • Ventricular systole : – After the atrial contraction impulse travels through AV node & specialized conduction system to excite the ventricle. – As the ventricular contraction begins pressure in the ventricles exceeds that of atria and this backwards pressur ...
Atrial Flutter with Irregular Ventricular Response
... )hysiolo gic origin, arising from the refractory period of the atrioventricular node, and it may occur without obvious cardiac disease.1-3 On the other hand, variations in the ventricular response during atrial flutter4 indicate increased block, which may be associated with disorders of the conducti ...
... )hysiolo gic origin, arising from the refractory period of the atrioventricular node, and it may occur without obvious cardiac disease.1-3 On the other hand, variations in the ventricular response during atrial flutter4 indicate increased block, which may be associated with disorders of the conducti ...
Isolated ventricular septal defect caused by
... A precordial murmur, systolic in time and loud in intensity, occurred in 25 (86%) of 29 patients, but it was not always present immediately. The time of appearance of the precordial murmur following the accident varied considerably: in 15 the murmur was audible immediately; in the others the murmur ...
... A precordial murmur, systolic in time and loud in intensity, occurred in 25 (86%) of 29 patients, but it was not always present immediately. The time of appearance of the precordial murmur following the accident varied considerably: in 15 the murmur was audible immediately; in the others the murmur ...
Full Text - Res Cardiovasc Med
... trial patients were chiefly diagnosed mostly included patients with sinus rhythm, there are a number of studies that have reported HF patients with AF will improve with CRT treatment (6, 7). Despite the tendency to use this therapy, there is non-response in about one-third of the patients (8). It is ...
... trial patients were chiefly diagnosed mostly included patients with sinus rhythm, there are a number of studies that have reported HF patients with AF will improve with CRT treatment (6, 7). Despite the tendency to use this therapy, there is non-response in about one-third of the patients (8). It is ...
Atraumatie Right Ventricular Aneurysm
... 1961. Except for the preadmission electrocardiogram, which demonstrated atrial fibrillation, repeated tracings were normal except for occasional premature ventricular contractions and digitalis effect. At fluoroscopic examination the mass was seen to pulsate in a paradoxical manner in the area of th ...
... 1961. Except for the preadmission electrocardiogram, which demonstrated atrial fibrillation, repeated tracings were normal except for occasional premature ventricular contractions and digitalis effect. At fluoroscopic examination the mass was seen to pulsate in a paradoxical manner in the area of th ...
Late Ventricular Diastole
... semilunar valves close When ventricular pressure is less than atrial pressure, the atrioventricular valves open ; the ventricles begin to fill Isovolumetric Period of Relaxation ...
... semilunar valves close When ventricular pressure is less than atrial pressure, the atrioventricular valves open ; the ventricles begin to fill Isovolumetric Period of Relaxation ...
Frequent Premature Ventricular Contractions
... controls. The ventricular tachycardia was especially associated with LVH and ST-T wave changes on EKG.6 It is difficult to correlate the impact of PVCs in the mortality of LVH due to the confounding presence of hypertension and coronary artery disease in these patients. It stands to reason, however, ...
... controls. The ventricular tachycardia was especially associated with LVH and ST-T wave changes on EKG.6 It is difficult to correlate the impact of PVCs in the mortality of LVH due to the confounding presence of hypertension and coronary artery disease in these patients. It stands to reason, however, ...
Ventricular ectopic beats in structurally normal heart: When to stop
... Background and objective: Ventricular ectopic beats (extra systoles, premature beats) are frequently found in healthy people. Ectopic beats in patients without apparent heart disease are more prominent at rest and disappear with exercise. Treatment is not necessary unless the patient is highly sympt ...
... Background and objective: Ventricular ectopic beats (extra systoles, premature beats) are frequently found in healthy people. Ectopic beats in patients without apparent heart disease are more prominent at rest and disappear with exercise. Treatment is not necessary unless the patient is highly sympt ...
ATRIAL FIBRILLATION IN CHILDHOOD WITH FAMILIAL
... documented the youngest cases of AF associated with hyperthyroidism at 14 years of age. The effect of hyperthyroid states on the heart predisposing it to AF has been documented to be at various levels by varied researchers, and can be genetic and non-genetic (i.e. mechanical) via dilatation of the a ...
... documented the youngest cases of AF associated with hyperthyroidism at 14 years of age. The effect of hyperthyroid states on the heart predisposing it to AF has been documented to be at various levels by varied researchers, and can be genetic and non-genetic (i.e. mechanical) via dilatation of the a ...
PDF Handout
... economic cost in the US is over $39 billion. Despite advanced medical therapy, HF still carries a significant human cost: a mortality of 50% at five years, rivaling many diagnoses of cancer. In the US annually, HF is the principal cause of death in >65,000 individuals, a contributing factor in o ...
... economic cost in the US is over $39 billion. Despite advanced medical therapy, HF still carries a significant human cost: a mortality of 50% at five years, rivaling many diagnoses of cancer. In the US annually, HF is the principal cause of death in >65,000 individuals, a contributing factor in o ...
Takotsubo - S. Blake Wachter, MD, PhD Advanced Heart Failure
... failure." Circulation 118(25): 2754-62. Iga, K., H. Gen, et al. (1989). "Reversible left ventricular wall motion impairment caused by pheochromocytoma-a case report." Jpn Circ J 53(7): 813-8. Inoue, M., M. Shimizu, et al. (2005). "Differentiation between patients with takotsubo cardiomyopathy and th ...
... failure." Circulation 118(25): 2754-62. Iga, K., H. Gen, et al. (1989). "Reversible left ventricular wall motion impairment caused by pheochromocytoma-a case report." Jpn Circ J 53(7): 813-8. Inoue, M., M. Shimizu, et al. (2005). "Differentiation between patients with takotsubo cardiomyopathy and th ...
atrial fibrillation
... trial fibrillation (AF) is the most common sustained Symptoms cardiac arrhythmia. The incidence is increasing In some cases AF can be completely without symptoms. in Australia due to the ageing population. It is estimated that 10% of the population older than 75 years Symptoms can range from none to ...
... trial fibrillation (AF) is the most common sustained Symptoms cardiac arrhythmia. The incidence is increasing In some cases AF can be completely without symptoms. in Australia due to the ageing population. It is estimated that 10% of the population older than 75 years Symptoms can range from none to ...
AN INTRODUCTION TO SIGNAL AVERAGED
... potentials (VLPs). These are low amplitude, high frequency signals present in the terminal part of QRS complex, extending into the ST segment. Late potentials cannot be detected by 12 lead standard ECG because they are obscured by background They correspond to skeletal muscle noise3. fractionated el ...
... potentials (VLPs). These are low amplitude, high frequency signals present in the terminal part of QRS complex, extending into the ST segment. Late potentials cannot be detected by 12 lead standard ECG because they are obscured by background They correspond to skeletal muscle noise3. fractionated el ...
PDF - e-Science Central
... However, acute fulminant myocarditis (AFM) has a fatal course due to the rapid development into acute heart failure, cardiogenic shock or serious arrhythmias. Cardiac thrombus formation is an important factor affecting the prognosis of these patients. We present a patient who was diagnosed as AFM wi ...
... However, acute fulminant myocarditis (AFM) has a fatal course due to the rapid development into acute heart failure, cardiogenic shock or serious arrhythmias. Cardiac thrombus formation is an important factor affecting the prognosis of these patients. We present a patient who was diagnosed as AFM wi ...
CRT Overview - February 2004
... peak excursions of the septum and of the posterior wall at the papillary muscle level • SPWMD 130 ms predicted response (LVEDVi) to CRT in study of 25 pts with QRS 140 ms1 ...
... peak excursions of the septum and of the posterior wall at the papillary muscle level • SPWMD 130 ms predicted response (LVEDVi) to CRT in study of 25 pts with QRS 140 ms1 ...
2. The arrhythmias with heterotop automatism predominance are the
... D. Echocardiography E. Hemoleucogram 2. The symptoms which appear during ventricular tachycardia episode in children depend from: A. Ventricular frequency B. Access duration C. Associated chromosomial aberrations D. Subjacent cardiac disease E. Adolescent age 3. Which signs are characteristic for be ...
... D. Echocardiography E. Hemoleucogram 2. The symptoms which appear during ventricular tachycardia episode in children depend from: A. Ventricular frequency B. Access duration C. Associated chromosomial aberrations D. Subjacent cardiac disease E. Adolescent age 3. Which signs are characteristic for be ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.